Which one of the following has the highest melting point?

(a) Na

(b) Mg

(c) K

(d) Al

 

Concept Questions :-

Lattice/Hydration Energy
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Which one is a metalloid?

(a)Tin

(b)Germanium

(c)Sulphur

(d)Carbon

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Zn and Cd do not show variable valency like 'd' block elements due to :

(a) Softness

(b) Completed 'd' orbital

(c) two electrons in outermost orbit

(d) low m.p.

Concept Questions :-

Modern Periodic Table
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In the long form of periodic table, the elements having lowest ionization potential are placed in:

(a) I group

(b) IV group

(c) VII group

(d) Zero group

Concept Questions :-

Ionization Energy (IE)
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Elements with electronic configuration 1s2,2s22p6, 3s23p63d10, 4s24p64d10, 5s25p3 belongs to the ...... group of periodic table.

(a) 3rd

(b) 15th

(c) 17th

(d) 12nd

Concept Questions :-

Electronic Configuration
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Which one of the elements with the following outer orbital configurations may exhibit the largest number of oxidation states?

(a)3d3,4s2

(b)3d5,4s1

(c)3d5,4s2

(d)3d2,4s2

 

Concept Questions :-

Electronic Configuration
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The law of triads applicable to a group of:

(a) Cl, Br, I

(b) C, N, O

(c) Na, K, Rb

(d) H, O, N

Concept Questions :-

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In the long form of periodic table all the non-metals are placed under:

(a) s-block

(b) p-block

(c) f-block

(d) d-block

Concept Questions :-

Modern Periodic Table
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General electronic configuration of the transition elements is given by:

(a) ns2nd1-10

(b) ns2np6nd1-10

(c) (n-1)d1-10np6

(d) (n-1)d1-10ns0-2

 

Concept Questions :-

Electronic Configuration
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The statements that is not correct for the periodic classification of elements is:

(a) the properties of elements are the periodic functions of their atomic number

(b) non-metallic elements are lesser in number that metallic elements

(c) the first ionization energies of elements along a period do not vary in a regular manner with increase in atomic number

(d) for transition elements, the d-sub-shells are filled with electrons monotonically with the increase in atomic number.

Concept Questions :-

Electronic Configuration
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